Official source Data mirrored from Centers for Medicare & Medicaid Services Open Payments · General Payments · CMS publication 2026-06-30 View official record

Covered recipient · General Payments record

SHAWN HASSLER

Allopathic & Osteopathic Physicians Internal Medicine Infectious Disease

NPI
1427122928
CMS profile
291581
Location
SAN FRANCISCO, CA

A name match is not confirmation of identity. CMS publishes records for different people under similar names; the NPI, specialty, and location shown on this page are the CMS-published fields that distinguish them.

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General Payments · PY2019 · Entire year

$107,860.28

320 records · 0 disputed

Summary and payment records

  • CMS publication 2026-06-30
Read the payment records

Other CMS categories — not shown on this page

Research Payments

CMS also publishes Research Payments as a separate dataset. This site does not currently mirror it, and no research figure is shown on this page. This provider appears in that dataset.

“If you are a physician who served as a principal investigator on a research study, you may see the payments associated with that research study listed under your name. This does not necessarily mean the payments are attributed to you. The dollar amount of the record corresponds to the total payment; the amounts are not attributed to each individual on the record.”

— Centers for Medicare & Medicaid Services, Open Payments Frequently Asked Questions, FAQ #12224

These records are published by CMS and can be viewed on this provider’s official CMS record. View this provider on CMS Open Payments ↗

“Financial relationships do not necessarily indicate an improper relationship; the data is open to interpretation.”

— Centers for Medicare & Medicaid Services, Open Payments

A reported payment reflects a financial relationship a company disclosed. It does not indicate wrongdoing or a conflict of interest, and it says nothing about the quality of a provider's care.

These records are submitted to CMS and attested to by the reporting companies. CMS publishes them as reported; this site mirrors them without independent verification.

A payment attributed to a provider may have been made to a third party — a hospital, practice, or research institution — rather than paid to the provider personally.

How these totals are calculated
  • This total is the sum of the individual General Payments record amounts CMS published for the labeled program year(s); each record amount is used unmodified. The total itself is computed by this site. Nothing is estimated, weighted, or combined across categories.
  • General Payments only. Research and Ownership/Investment are separate datasets and are never summed with these figures; amounts are kept separate per program year.
  • Methodology & Data — sourcing, labeling, and limitations.

Provider summaries generated . CMS updates this data on an annual cycle, and corrections or successful disputes made at CMS may not yet appear here. The official CMS record is authoritative for the current state. View the official CMS record ↗

By nature of payment

PY2019 · entire year · sorted by reported total

By paying entity

PY2019 · entire year · sorted by reported total

Page 1 of 7; records 1–50 of 320 matching records. This page contains 50 records (maximum 50), not the full filtered export. Use the CSV download for all matching records.

IndustryPayments · General Payments

SHAWN HASSLER

NPI 1427122928 · CMS profile ID 291581

Allopathic & Osteopathic Physicians / Internal Medicine / Infectious Disease

SAN FRANCISCO, CA

A name match is not confirmation of identity. CMS publishes records for different people under similar names; the NPI, specialty, and location shown on this page are the CMS-published fields that distinguish them.

A payment attributed to a provider may have been made to a third party — a hospital, practice, or research institution — rather than paid to the provider personally.

General Payments, PY2019; Recipient scope: Physicians and non-physician practitioners; Reporting company: All reporting companies; Nature of payment: All payment types

Data edition: cms-20260630-workflow-20261105-v2; CMS publication: 2026-06-30; records imported: 2026-11-05T09:06:52.159882+00:00

Page 1 of 7; records 1–50 of 320 matching records. This page contains 50 records (maximum 50), not the full filtered export.

Filtered page: https://industrypayments.org/provider/npi-1427122928?year=2019&recipient=provider#records-h

CMS source: https://openpaymentsdata.cms.gov/dataset/4e54dd6c-30f8-4f86-86a7-3c109a89528e

Cite these filtered records

The citation includes this program year, filters, data edition, and page of results.

Plain
SHAWN HASSLER, NPI 1427122928, CMS profile ID 291581. General Payments, PY2019; Recipient scope: Physicians and non-physician practitioners; Reporting company: All reporting companies; Nature of payment: All payment types. Data edition: cms-20260630-workflow-20261105-v2; CMS publication: 2026-06-30; records imported: 2026-11-05T09:06:52.159882+00:00. Page 1 of 7; records 1–50 of 320 matching records. This page contains 50 records (maximum 50), not the full filtered export. IndustryPayments. https://industrypayments.org/provider/npi-1427122928?year=2019&recipient=provider#records-h. Source: https://openpaymentsdata.cms.gov/dataset/4e54dd6c-30f8-4f86-86a7-3c109a89528e.
APA 7
IndustryPayments. (2026). SHAWN HASSLER, NPI 1427122928, CMS profile ID 291581. General Payments, PY2019; Recipient scope: Physicians and non-physician practitioners; Reporting company: All reporting companies; Nature of payment: All payment types. Data edition: cms-20260630-workflow-20261105-v2; CMS publication: 2026-06-30; records imported: 2026-11-05T09:06:52.159882+00:00. Page 1 of 7; records 1–50 of 320 matching records. This page contains 50 records (maximum 50), not the full filtered export. [Filtered data set page]. https://industrypayments.org/provider/npi-1427122928?year=2019&recipient=provider#records-h. Source: https://openpaymentsdata.cms.gov/dataset/4e54dd6c-30f8-4f86-86a7-3c109a89528e.
Bluebook
SHAWN HASSLER, NPI 1427122928, CMS profile ID 291581, IndustryPayments, General Payments, PY2019; Recipient scope: Physicians and non-physician practitioners; Reporting company: All reporting companies; Nature of payment: All payment types (Data edition: cms-20260630-workflow-20261105-v2; CMS publication: 2026-06-30; records imported: 2026-11-05T09:06:52.159882+00:00). Page 1 of 7; records 1–50 of 320 matching records. This page contains 50 records (maximum 50), not the full filtered export. Source: https://openpaymentsdata.cms.gov/dataset/4e54dd6c-30f8-4f86-86a7-3c109a89528e. https://industrypayments.org/provider/npi-1427122928?year=2019&recipient=provider#records-h.

Centers for Medicare & Medicaid Services, Open Payments

Citation formats are provided for reference; check the requirements of your publication.

Payment records · PY2019

Ordering applied by this site (date, newest first, then paying entity) · record values are shown as CMS published them

General Payments · PY2019 · Physicians and non-physician practitioners · CMS publication 2026-06-30

320 matching records · $107,860.28 reported total · 0 disputed

Nature of payment: All payment types

Records imported here (UTC).

Link to these filtered records · CMS source dataset ↗

Download all 320 matching records (CSV)

CSV includes CMS record IDs, source and publication dates, the data edition, and a link to these filters. Formula-like text cells are prefixed with an apostrophe for spreadsheet safety.

Showing records 1–50 of 320.

Paying entityAmountDate Nature of paymentDispute statusPublication flagsPublished Record IDSource
Gilead Sciences, Inc. $3,140.0012/20/2019 Consulting Fee No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 679259121 CMS
EMD Serono, Inc. $18.3212/19/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 702977527 CMS
ViiV Healthcare Company $23.2012/18/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 671598281 CMS
Gilead Sciences, Inc. $8.0012/17/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 681526511 CMS
Amarin Pharma Inc. $19.7612/16/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 699274373 CMS
ViiV Healthcare Company $121.7312/12/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 671577895 CMS
Antares Pharma, Inc. $13.9412/11/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 676466749 CMS
Gilead Sciences, Inc. $17.0312/11/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 681526509 CMS
Amarin Pharma Inc. $14.6012/10/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 699276973 CMS
Gilead Sciences, Inc. $24.5212/10/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 681526507 CMS
Gilead Sciences, Inc. $15.8412/04/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 681526505 CMS
ViiV Healthcare Company $2.3912/03/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 671581239 CMS
ViiV Healthcare Company $22.2612/03/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 671598831 CMS
Antares Pharma, Inc. $4.0211/27/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 676466647 CMS
Antares Pharma, Inc. $19.1211/27/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 676466675 CMS
Novo Nordisk Inc $22.1411/26/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 674733969 CMS
EMD Serono, Inc. $19.7311/22/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 702973839 CMS
Gilead Sciences, Inc. $311.3711/22/2019 Travel and Lodging No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 679344297 CMS
Gilead Sciences, Inc. $338.9011/22/2019 Travel and Lodging No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 679344299 CMS
Gilead Sciences, Inc. $726.2211/22/2019 Travel and Lodging No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 679344301 CMS
Gilead Sciences, Inc. $50.0011/22/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 681526501 CMS
Gilead Sciences, Inc. $50.0011/22/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 681526503 CMS
Gilead Sciences, Inc. $1,730.0011/20/2019 Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 679309925 CMS
Gilead Sciences, Inc. $16.7011/20/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 681526499 CMS
ViiV Healthcare Company $17.5511/19/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 671560943 CMS
ViiV Healthcare Company $0.8211/19/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 671585659 CMS
Janssen Biotech, Inc. $20.8511/18/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 658472849 CMS
Takeda Pharmaceuticals U.S.A., Inc. $11.3411/18/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 681806517 CMS
Amarin Pharma Inc. $21.5311/14/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 699260645 CMS
Antares Pharma, Inc. $9.7511/14/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 676466525 CMS
Gilead Sciences, Inc. $95.9411/14/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 681526497 CMS
Gilead Sciences, Inc. $20.1111/12/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 681526495 CMS
Gilead Sciences, Inc. $1,730.0011/11/2019 Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 679309923 CMS
Gilead Sciences, Inc. $57.5411/11/2019 Travel and Lodging No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 679344295 CMS
EMD Serono, Inc. $9.2811/07/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 703010287 CMS
Gilead Sciences, Inc. $124.9911/07/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 681526493 CMS
Gilead Sciences, Inc. $4.5511/06/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 681526489 CMS
Gilead Sciences, Inc. $15.3811/06/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 681526491 CMS
Gilead Sciences, Inc. $16.7711/05/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 681526487 CMS
ViiV Healthcare Company $9.5411/05/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 671605429 CMS
Antares Pharma, Inc. $19.5011/01/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 676464629 CMS
EMD Serono, Inc. $5.2810/31/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 703016467 CMS
Gilead Sciences, Inc. $7.8110/30/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 681526485 CMS
Gilead Sciences, Inc. $22.8410/29/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 681526483 CMS
ViiV Healthcare Company $1,200.0010/29/2019 Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 671573531 CMS
ViiV Healthcare Company $3,600.0010/28/2019 Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 671597959 CMS
EMD Serono, Inc. $6.2710/25/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 703014581 CMS
Gilead Sciences, Inc. $1,730.0010/24/2019 Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 679309921 CMS
Takeda Pharmaceuticals U.S.A., Inc. $18.4210/24/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 681820317 CMS
Gilead Sciences, Inc. $7.7210/22/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 681526479 CMS

By program year

All program years on this page · sorted by year

Program yearAmountRecords
PY2019 $107,860.28 320
PY2020 $31,069.79 96
PY2021 $31,002.22 102
PY2022 $54,312.10 157
PY2023 $79,317.32 195
PY2024 $64,995.55 213
PY2025 $64,622.36 246

Source & provenance

Dataset
CMS Open Payments — General Payments
Publisher of source data
Centers for Medicare & Medicaid Services
CMS publication date
2026-06-30
Program years on this page
2019, 2020, 2021, 2022, 2023, 2024, 2025
Source files and profile matching
Generated from
OP_DTL_GNRL_PGYR2025_P06302026_06032026.csv

One page per canonical provider; split Profile_IDs are merged via Associated_Covered_Recipient_Profile_ID_1/_2 from the Covered Recipient Profile Supplement.

Corrections to the substance of a record route to CMS through its review-and-dispute process; errors in how this site mirrors or displays a record route to us. Both paths are described in Methodology & Data.